{
  "manageEntity": {
    "action": "Save",
    "entityId": "1264696744",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x34f415027d3b42cd43462cc6ac39ed589f585c4e5b8533cd98bd0f79eb8c6720",
    "signature": "0x1f83e587448bbf23dd3ad35ff7a182edc5ee2b845cb88577ce158cc8a9c0bc59309cd1e41a9e86cbf8e7c01325b0266e5eb91c2b376d49b51c45894ac0264ec21c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}